/*
day62
2019.10.29
*/

struct TreeNode {
	int val;
	struct TreeNode *left;
	struct TreeNode *right;
};


struct TreeNode* mergeTrees(struct TreeNode* t1, struct TreeNode* t2)
{
	if(!t1) return t2;
	if(!t2) return t1;
	
	t1->val += t2->val;
	
	t1->left = mergeTrees(t1->left,t2->left);
	t1->right = mergeTrees(t1->right,t2->right);
	
	return t1;
	
}


int main()
{
	return 0;
}
